EP1764776B1 - Anzeigevorrichtung und Steuerverfahren dafür - Google Patents

Anzeigevorrichtung und Steuerverfahren dafür Download PDF

Info

Publication number
EP1764776B1
EP1764776B1 EP06120707A EP06120707A EP1764776B1 EP 1764776 B1 EP1764776 B1 EP 1764776B1 EP 06120707 A EP06120707 A EP 06120707A EP 06120707 A EP06120707 A EP 06120707A EP 1764776 B1 EP1764776 B1 EP 1764776B1
Authority
EP
European Patent Office
Prior art keywords
time
signal
time event
power
video signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP06120707A
Other languages
English (en)
French (fr)
Other versions
EP1764776A2 (de
EP1764776A3 (de
Inventor
Young-Chan Kim
Heung-Jun Park
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of EP1764776A2 publication Critical patent/EP1764776A2/de
Publication of EP1764776A3 publication Critical patent/EP1764776A3/de
Application granted granted Critical
Publication of EP1764776B1 publication Critical patent/EP1764776B1/de
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/63—Generation or supply of power specially adapted for television receivers
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0606—Manual adjustment
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/025—Reduction of instantaneous peaks of current
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/026—Arrangements or methods related to booting a display

Definitions

  • the present invention relates to a display apparatus and a control method thereof, and more particularly, to a display apparatus and a control method thereof to improve an on and/or off time for electric power supplied to a display.
  • a display apparatus receives a video signal of a display mode from a video signal source, such as a computer, a TV broadcasting system and etc., to display an image on a display.
  • a video signal source such as a computer, a TV broadcasting system and etc.
  • the display apparatus can use a flat panel such as a liquid crystal display (LCD) panel, a plasma display panel (PDP), etc. as well as a cathode ray tube (CRT) as the display.
  • LCD liquid crystal display
  • PDP plasma display panel
  • CRT cathode ray tube
  • the display receives electric power and processes the video signal to be displayed as the image thereon. Further, a time difference between a time of receiving the electric power and a time of displaying an image should not exceed a predetermined range.
  • an internal circuit of a power supply supplying the electric power comprises a capacitor, so that the time difference between the time of receiving the electric power and the time of displaying the image is a predetermined time.
  • the time difference between the time of supplying the electric power to the display and the time of displaying the image exceeds the predetermined range, noise is generated in the display or an excessive voltage is applied to the display.
  • US 2001/0011980 discloses a system for preventing a white-screen error in a LCD device by reducing a time delay between a time of transmitting an enable signal to a DC/DC converter and a time for transmitting a data signal to the LCD gradually until a timing problem is overcome.
  • WO 2005/048230 discloses a display apparatus having a GUI generator and a controller controlling the GUI generator to display an afterimage elimination image in an area set by operating a user input unit.
  • a display apparatus comprising:
  • the enable/disable time of the video signal may comprise at least one of the enable time of the video signal when the video signal starts to be displayed on the display and the disable time of the video signal when the video signal finishes being displayed on the display.
  • the controller may delay the enable time of the video signal to adjust the sequence difference between the on time of the power signal and the enable time of the video signal, and delays the off time of the power signal to adjust the sequence difference between the off time of the power signal and the disable time of the video signal.
  • the controller may determine a delayed time based on a time difference between the on/off time and the initial on/off time, and determines whether the sequence difference is out of the predetermined range according to whether the delayed time is not within a preset range.
  • the controller may output the power control signal having a changed initial on/off time to the power supply so as to control the on/off time of the power signal.
  • the display apparatus may further comprise a user selection unit, wherein when a delaying time to delay the on/off time of the power signal is input through the user selection unit, the controller delays at least one of the on/off time of the power signal and the enable/disable time of the video signal according to the delaying time.
  • the display apparatus may further comprise a delaying time store unit to store the delaying time, wherein the controller delays the on/off time of the power signal and the enable/disable time of the video signal according to the time period corresponding to the delaying time stored in the delaying time store unit.
  • the present invention also provides a control method of a display apparatus, comprising:
  • the enable/disable time of the video signal may comprise at least one of the enable time of the video signal when the video signal starts to be displayed on the display and the disable time of the video signal when the video signal finishes being displayed on the display.
  • the controlling of the sequence difference to be within the predetermined range may comprise delaying the enable time of the video signal to adjust the sequence difference between the on time of the power signal and the enable time of the video signal, and delaying the off time of the power signal to adjust the sequence difference between the off time of the power signal and the disable time of the video signal.
  • the determining of the sequence difference to be within the predetermined range may comprise determining delayed time based on a time difference between the on/off time and the initial on/off time which are outputted from the power supply, and determining whether the sequence difference is out of the predetermined range according to whether the delayed time is out of a preset range.
  • the controlling of the sequence difference to be within the predetermined range may comprise outputting the power control signal having a changed initial on/off time, and changing the on/off time of the power signal by the power control signal.
  • the control method of the display apparatus further may comprise receiving a delaying time input signal to delay the on/off time of the power signal; and delaying at least one of the on/off time and the enable/disable time as much as a delaying time.
  • the delaying of the on/off time according to a time period corresponding to the delaying time may comprise storing the delaying time, and delaying at least one of the on/off time and the enable/disable time according to the time period corresponding to the stored delaying time.
  • FIG. 1 is a control block diagram illustrating a display apparatus according to an embodiment of the present invention.
  • the display apparatus comprises a display 30, a signal input unit 10, a signal processor 20 to process a video signal input through the signal input unit 10, a power supply 70 to supply electric power to the display 30, and a controller 50 to control the signal input unit 10, the signal processor 20, and the display 30.
  • the signal input unit 10 may comprise terminals corresponding to various formats of video signals.
  • the signal input unit 10 may comprise a composite input terminal (not shown) to receive a composite signal, an S-video input terminal (not shown) to receive an S-video signal, a component input terminal (not shown) to receive a component signal, a PC input terminal (not shown) to receive a PC signal, and a TV input terminal (not shown) to receive a TV signal.
  • the signal processor 20 processes the video signal that is input through the signal input unit 10 to be displayed on the display 30.
  • the signal processor 20 outputs a processed video signal to the display 30.
  • the signal processor 20 may comprise various configurations according to the type of the display 30.
  • the signal processor 20 comprises a scaler (not shown) to scale a digital video signal to correspond to the processed video signal.
  • the signal processor 20 comprises an amplifier (not shown) to amplify the video signal, and vertical and horizontal deflectors (not shown) which deflect an electron beam based on a vertical synchronizing signal and a horizontal synchronizing signal of the video signal.
  • the signal processor 20 may comprise a video decoder (not shown), an A/D converter (not shown) and a tuner (not shown) so as to convert the various formats of the video signals that are input through the signal input unit 10 into a signal adapted for the scaler.
  • the scaler can process the video signals having various formats.
  • the video decoder decodes the composite signal and the S-video signal that is input through the composite input terminal and the S-video input terminal, respectively, and outputs decoded signals to the scaler.
  • the A/D converter converts the component signal and the PC signal which are input through the component input terminal and the PC input terminal, respectively, into digital signals, and outputs the digital signals to the scaler.
  • the tuner selects and amplifies the TV signal input through the TV input terminal, and outputs the TV signal to the A/D converter.
  • the video decoder and the A/D converter selectively process one of the video signals that are input through respective corresponding input terminals and output the video signal to the scaler by the controller 50.
  • the display 30 receives the signals processed by the signal processor 20 and displays a predetermined image.
  • the display 30 comprises a display module (not shown) where the images are displayed, and a module driving part (not shown) to process the signals from the signal processor 20 to be displayed on the display module.
  • the display module may comprise a CRT, a DLP, an LCD, a PDP, etc.
  • the module driving part may comprise an optical engine.
  • the module driving part may comprise a printed circuit board (PCB) to convert the signals input from the signal processor 20 into a gate signal and a data signal.
  • the display 30 may comprise a module driving part corresponding to the display module type.
  • the power supply 70 supplies electric power to the display 30.
  • the power supply 70 can output a power signal having a predetermined level to the display 30 according to a power control signal of the controller 50.
  • the controller 50 controls the signal processor 20 to output the video signal to the display 30.
  • the controller 50 controls the signal processor 20 to adjust an enable/disable time for the video signal.
  • the enable/disable time of the video signal comprises at least one of an enable time when the video signal is enabled and a disable time when the video signal is disabled.
  • the enable time may comprise at least one of when the video signal starts to be transferred to the display 30 and when the video signal is enabled to be displayed on the display 30.
  • the disable time may comprise at least one of when the transfer of the video signal to the display 30 stops and when the video signal is disabled to not be displayed on the display 30.
  • the controller 50 controls the power supply 70 to output the power signal to turn on/off the display 30.
  • the controller 50 outputs the power control signal to the power supply 70 to adjust an on/off time for the power signal.
  • the on/off time comprises at least one of an on time when the power signal is on and an off time when the power signal is off.
  • the controller 50 determines whether at least one of a first sequence difference, i.e., a time difference between the on time of the power signal and the enable time of the video signal, and a second sequence difference, i.e., a time difference between the off time of the power signal and the disable time of the video signal is out of a predetermined range, the controller 50 can control each of the first sequence difference and the second sequence difference to be within the predetermined range.
  • the time difference may be larger or smaller than a predetermined reference time by a predetermined limit.
  • the first and second sequence differences may also be within first and second predetermined ranges, respectively.
  • the first and second predetermined ranges may be different from each other depending on start up and shut down characteristics of the display apparatus.
  • the controller 50 may change at least one of the on/off time for the power signal output from the power supply 70 and the enable/disable time for the video signal output from the signal processor 20.
  • the controller 50 can control the power supply 70 to change the on/off times or the signal processor 20 to change the enable/disable times if at least one of the first and second sequence differences are out of the predetermined range.
  • the controller 50 outputs the power control signal to the power supply 70 to output the power signal having a predetermined on/off time.
  • the predetermined on/off time for the power control signal to control the on/off time is called an initial on/off time.
  • the power supply 70 When the power supply 70 receives the power control signal having the initial on/off time, the power supply 70 outputs the power signal at an on/off time.
  • the on/off time is obtained by delaying the initial on/off time by a predetermined time through a capacitor, or the like, internally provided in the power supply 70, to the display 30.
  • the enable/disable times of the video signal are may not be delayed in the signal processor 20.
  • the controller 50 can determine a delayed time difference based on the time difference between the on/off times of a feedback power signal output from the power supply 70 and the initial on/off time of the power control signal.
  • the feedback power signal can be output when the power supply 70 starts supplying power to the display 30.
  • the controller 50 can determine whether the first and second sequence differences are out of a predetermined range according to the delayed time difference which is out of a preset range.
  • the controller 50 may initialize the power control signal to control the power signal before the controller 50 determines the delayed time difference.
  • the controller 50 compares the initial on/off time of the power control signal with the on/off times of the feedback power signal to determine the delayed time difference.
  • the controller 50 can determine the on/off times of the power supply 70 on the basis of the feedback power signal from the power supply 70.
  • the controller 50 can directly compare the on/off times of the feedback power signal with the enable/disable times of the video signal.
  • the controller 50 changes the initial on/off time of the power control signal to control the on/off times of the power signal and outputs a changed power control signal to the power supply 70.
  • the display apparatus may further comprise a user selection unit 40.
  • the user selection unit 40 may be variously implemented by an input key, a button, etc., so that a user inputs or selects a desired function.
  • the display apparatus can receive information about a delaying time through the user selection unit 40 so as to control the on/off times of the power signal.
  • the user selection unit 40 can provide a predetermined delaying time input signal to the controller 50.
  • the controller 50 can then determine the delaying time value from the predetermined delaying time input signal.
  • the controller 50 may delay the on/off times of the power signal according to the time period corresponding to the delaying time when the delaying time is input through the user selection unit 40.
  • the controller 50 stores the input delaying time in a delaying time store unit 60 and delays the on/off times of the power signal based on the input delaying time.
  • the controller 50 may provide a second power control signal having a second initial on/off time delayed according to the time period corresponding to the delaying time to the power supply 70.
  • the input delaying time input through the user selection unit 40 can be input when the display apparatus is manufactured or when a serviceperson determines whether the sequence difference is within the predetermined range. Alternatively, an ordinary user may input the delaying time.
  • the controller 50 calculates the initial on/off time to delay the on/off times of the power signal according to the time period corresponding to the delaying time, and inputs a power control signal having the initial on/off time delayed as much as the calculated time to the power supply 70.
  • the display apparatus supplies the electric power to the display 30 (Panel On) and enables an LVDS signal (LVDS enable) after the predetermined time. Then, the display 30 starts to communicate with the respective units and data are enabled (data enable), so that the video signal is applied to the display 30. Thus, when the delaying time elapses after the electric power is supplied to the display 30, the controller 50 outputs the video signal to the display 30.
  • 'ON_DELAY' is an invariable value
  • 'ondelay' is a value capable of delaying the initial on time of the power control signal according to the determined first sequence difference between the on time of the power signal and the enable time of the video signal on the basis of the feedback of the power signal output from the power supply 70.
  • 'user_on_delay' is a value input through the user selection unit 40 and is used as, for example, the input delay time, to control the first sequence difference.
  • the display apparatus disables the LVDS signal (LVDS disable). Then, the display apparatus disables the data applied from the signal processor 20 (data disable), and then stops the electric power from being supplied to the display 30 (Panel Off). Thus, when the delaying time elapses after the video signal is disabled, the controller 50 turns off the display 30.
  • LVDS disable is an invariable value
  • 'offdelay' is a value capable of delaying the initial off time of the power control signal according to the determined second sequence difference between the off time of the power signal and the disable time of the video signal on the basis of the feedback of the power signal outputted from the power supply 70.
  • 'user_off_delay' is a value input through the user selection unit 40 and is used to control the second sequence difference.
  • FIG. 2A is a timing diagram illustrating the power signal and the video signal before the sequence differences are not compensated in the present invention.
  • the video signal is enabled at 't13' and disabled at 't14'. That is, the enable time of the video signal is 't13', and the disable time of the video signal is 't14'.
  • the power supply 70 is controlled by the power control signal to supply the electric power to the display 30 at 't11' and block the electric power at 't15', the power supply 70 substantially outputs an on power signal at 't12' to supply the electric power to the display 30 and an off power signal at 't16' to block the electric power.
  • the initial on time of the power control signal is 't11'
  • the on time of the power signal is 't12'
  • the initial off time of the power control signal is 't15'
  • the off time of the power signal is 't16'.
  • Figure 2B is a timing diagram illustrating the power signal and the video signal where the sequence differences are compensated for in the present invention. That is, when the controller 50 adjusts the sequence difference, i.e., compensates the sequence differences to be within the predetermined range, the timing diagram of the power signal and the video signal appears as illustrated in Figure 2B .
  • the power supply 70 is controlled by the power control signal to supply the electric power to the display 30 and the on time of the power signal is 't21', the enable time of the video signal is 't23', the off time of the power signal is't25', and the disable time of the video signal is't24'.
  • FIG. 3 is a control flowchart illustrating the display apparatus according to an embodiment of the present invention.
  • the display apparatus outputs the power signal to the display 30 to turn on/off the display 30 at operation S11.
  • the video signal is output to the display 30.
  • the controller 50 determines the enable/disable times of the video signal and the on/off times of the power signal output from the power supply 70. Based on the enable/disable times of the video signal and the on/off times of the power signal, the controller 50 determines whether the sequence differences, time differences between the enable/disable times of the video signal and the on/off times of the power signal, are within the predetermined range at operation S17). When the sequence differences are out of the predetermined range, the controller 50 controls at least one of the power on/off signal and the video signal enable/disable signal, so that the sequence differences become within the predetermined range.
  • the controller 50 delays the enable time of the video signal to adjust the first sequence difference, the time difference between the on time of the power signal and the enable time of the video signal, and delays the off time of the power signal to adjust the second sequence difference, the time difference between the off time of the power signal and the disable time of the video signal.
  • the controller 50 receives the predetermined delaying time input signal through the user selection unit 40 at operation S21, the controller 50 stores the received delaying time in the delaying time store unit 60 at operation S23 and changes the sequence differences according to the time period corresponding to the delaying time (Operation S25).
  • the controller 50 may delay at least one of the on/off times and the enable/disable times by the delaying time.
  • the present invention provides a display apparatus and a control method thereof, in which a sequence difference, i.e., a time difference between an enable/disable time for a video signal to be applied to a display and an on/off time for a power signal to be applied to the display is adjusted to be within a predetermined range.
  • a sequence difference i.e., a time difference between an enable/disable time for a video signal to be applied to a display and an on/off time for a power signal to be applied to the display is adjusted to be within a predetermined range.
  • the present invention prevents malfunctions such as screen noise, overvoltage generation and etc., generated when the sequence differences are out of the predetermined range.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Digital Computer Display Output (AREA)

Claims (14)

  1. Anzeigevorrichtung, umfassend,
    - eine Anzeigeeinrichtung (30);
    - ein Videoprozessor (20), dafür konfiguriert, ein Videosignal für eine Anzeigeeinrichtung (30) bereit zu stellen, entsprechend einem Freigabezeitereignis, wenn das Videosignal freigegeben ist und einem Sperrzeitereignis, wenn das Videosignal gesperrt ist;
    - eine Stromversorgung (70), dafür konfiguriert, der Anzeigeeinrichtung (30) ein Stromsignal zur Verfügung zu stellen, entsprechend einem Einschaltzeitereignis, wenn die Zufuhr des Stromsignals zu der Anzeigeeinrichtung (30) beginnt und einem Ausschaltzeitereignis, wenn die Zufuhr des Stromsignals zu der Anzeigeeinrichtung (30) gestoppt wird und ein Rückmeldestromsignal auszusenden; und
    - Eine Steuer-/Reglervorrichtung (50), dafür konfiguriert:
    Ein Stromsteuersignal, das ein anfängliches Einschalt- und Ausschaltzeitereignis aufweist, zu einer Stromversorgung (70) anzulegen, um so entsprechend das Einschalt- und Ausschaltzeitereignis des Stromsignals zu steuern; und
    Das Rückmeldestromsignal zu empfangen;
    ist dadurch gekennzeichnet, dass
    der Regler dafür konfiguriert ist
    das Einschaltzeitereignis des Rückmeldestromsignals mit dem Freigabezeitereignis des Videosignals zu vergleichen und
    zu bestimmen, ob eine erste zeitliche Differenz zwischen dem Einschaltzeitereignis des Rückmeldestromsignals und dem Freigabezeitereignis des Videosignals außerhalb eines ersten vorbestimmten Bereichs liegt;
    und/oder das Ausschaltzeitereignis des Rückmeldestromsignals mit dem Speerzeitereignis des Videosignals zu vergleichen und
    zu bestimmen, ob eine zweite zeitliche Differenz zwischen dem Ausschaltzeitereignis des Rückmeldestromsignals und dem Speerzeitereignis des Videosignals außerhalb eines zweiten vorbestimmten Bereichs liegt;
    das anfängliche Einschaltzeitereignis des Stromsteuersignals oder das Freigabezeitereignis des Videosignals so zu steuern, dass die erste zeitliche Differenz innerhalb des ersten vorbestimmten Bereichs liegt;
    und/oder das anfängliche Ausschaltzeitereignis des Stromsteuersignals oder das Sperrzeitereignis des Videosignals so zu steuern, dass die zweite zeitliche Differenz innerhalb des zweiten vorbestimmten Bereichs liegt.
  2. Anzeigevorrichtung nach Anspruch 1, wobei das Freigabezeitereignis des Videosignals dann ist, wenn das Videosignal beginnt auf der Anzeigeeinrichtung (30) angezeigt zu werden und das Speerzeitereignis des Videosignals dann ist, wenn das Videosignal aufhört auf der Anzeigeeinrichtung (30) angezeigt zu werden.
  3. Anzeigevorrichtung nach Anspruch 1 oder 2, wobei die Steuer-/Reglervorrichtung (50) dafür konfiguriert ist, das Freigabezeitereignis des Videosignals zu verzögern, um die erste zeitliche Differenz anzupassen und um das Ausschaltzeitereignis des Stromsignals zu verzögern, um die zweite zeitliche Differenz anzupassen.
  4. Anzeigevorrichtung nach einem der vorangegangenen Ansprüche, wobei die Steuer-/Reglervorrichtung (50) dafür konfiguriert ist, um eine Zeitverzögerung zu bestimmen, die auf einer Differenz zwischen dem Einschaltzeitereignis des Rückmeldestromsignals und dem anfänglichen Einschaltzeitereignis des Stromsteuersignals basiert oder auf einer Differenz zwischen dem Ausschaltzeitereignis des Rückmeldestromsignals und dem anfänglichen Ausschaltzeitereignis des Stromsteuersignals basiert, und zu bestimmen, ob die erste und/oder zweite zeitliche Differenz sich außerhalb des entsprechenden ersten und/oder zweiten vorgegebenen Bereichs befindet in Abhängigkeit dazu, ob die Verzögerungszeit nicht innerhalb des vorgegebenen Bereich liegt.
  5. Anzeigevorrichtung nach Anspruch 4, wobei die Steuer-/Reglervorrichtung (50) dafür konfiguriert ist, das Stromsteuersignal, das ein geändertes anfängliches Einschalt- und/oder Ausschaltzeitereignis besitzt, an die Stromversorgung (70) auszugeben, um so das Einschalt- und Ausschaltzeitereignis des Stromsignals entsprechend zu steuern.
  6. Anzeigevorrichtung nach einem der vorhergegangenen Ansprüche, ferner umfassend:
    eine Bedienerauswahleinrichtung (40);
    wobei die Steuer-/Reglervorrichtung (50) dafür konfiguriert ist, dann, wenn eine Verzögerungszeit zum Verzögern des Einschalt- und/oder Ausschaltzeitereignisses des Stromsignals mittels der Bedienerauswahleinrichtung (40) eingegeben ist, wenigstens eines der Einschalt- und/oder Ausschaltereignisse des Stromsignals und/oder eines der Freigabe- und/oder Speerzeitereignisse des Videosignals entsprechend der Verzögerungszeit zu verzögern.
  7. Anzeigevorrichtung nach Anspruch 6, ferner umfassend:
    eine Verzögerungszeitspeichereinrichtung (60), in der die Verzögerungszeit gespeichert ist, wobei die Steuer-/Reglervorrichtung (50) dafür konfiguriert ist, das Einschalt- und/oder Ausschaltzeitereignis des Stromsignals oder das Freigabe- und/oder Speerzeitereignis des Videosignals, gemäß einer Zeitdauer zu verzögern, die der Verzögerungszeit, die in der Verzögerungszeitspeichereinrichtung (60) gespeichert ist, entspricht.
  8. Ein Steuer-/Regelverfahren einer Anzeigevorrichtung enthält:
    Zuführen eines Videosignals zu einer Anzeigeeinrichtung (30) entsprechend einem Freigabezeitereignis, wenn das Videosignal freigegeben ist und einem Sperrzeitereignis, wenn das Videosignal gesperrt ist;
    Bereitstellen eines Stromsignals von einer Stromversorgung (70) für eine Anzeigeeinrichtung (30) gemäß eines Einschaltzeitereignisses, wenn die Zufuhr des Stromsignals zu der Anzeigeeinrichtung (30) beginnt und eines Ausschaltzeitereignisses, wenn die Zufuhr des Stromsignals zu der Anzeigeeinrichtung (30) gestoppt wird und Aussenden eines Rückmeldestromsignals von der Stromversorgung (70);
    Ausführen eines Stromsteuersignals, das ein anfängliches Einschaltund/oder Ausschaltzeitereignis zu einer Stromversorgung (70) aufweist, um so das Einschalt- und/oder Ausschaltzeitereignis des Stromsignals zu steuern,
    ist dadurch gekennzeichnet, dass
    das Steuerverfahren die folgenden Verfahrensschritte enthält:
    Vergleichen des Einschaltzeitereignis des Rückmeldestromsignals mit dem Freigabezeitereignis des Videosignals und
    Bestimmen, ob eine erste zeitliche Differenz zwischen dem Einschaltzeitereignis des Rückmeldestromsignals und dem Freigabezeitereignis des Videosignals außerhalb eines ersten vorbestimmten Bereichs liegt; und/oder
    Vergleichen des Ausschaltzeitereignis des Rückmeldestromsignals mit dem Speerzeitereignis des Videosignals und
    Bestimmen, ob eine zweite zeitliche Differenz zwischen dem Ausschaltzeitereignis des Rückmeldestromsignals und dem Speerzeitereignis des Videosignals außerhalb eines zweiten vorbestimmten Bereichs liegt;
    Steuern des anfänglichen Einschaltzeitereignis des Stromsteuersignals oder des Einschaltzeitereignis des Videosignals, so dass die erste zeitliche Differenz innerhalb des ersten vorbestimmten Bereichs liegt; und/oder
    Steuern des anfänglichen Ausschaltzeitereignis des Stromsteuersignals oder des Ausschaltzeitereignis des Videosignals, so dass die zweite zeitliche Differenz innerhalb des zweiten vorbestimmten Bereichs liegt.
  9. Steuer-/Regelverfahren nach Anspruch 8, wobei:
    das Freigabezeitereignis des Videosignals dann ist, wenn das Videosignal beginnt auf der Anzeigeeinrichtung (30) angezeigt zu werden und das Speerzeitereignis des Videosignals dann ist, wenn das Videosignal aufhört auf der Anzeigeeinrichtung (30) angezeigt zu werden.
  10. Steuer-/Regelverfahren nach Anspruch 8 oder 9, wobei das Kontrollieren der zeitlichen Differenz das Verzögern des Freigabezeitereignis des Videosignals enthält, um die erste zeitliche Differenz anzupassen, und das Verzögern des Ausschaltzeitereignis des Videosignals enthält, um die zweite zeitliche Differenz anzupassen.
  11. Steuer-/Regelverfahren nach Anspruch 8, 9 oder 10, ferner umfassend:
    Bestimmen einer Verzögerungszeit, die auf einer Differenz zwischen dem Einschaltzeitereignis des Rückmeldestromsignals und dem anfänglichen Einschaltzeitereignis des Stromsteuersignals basiert; oder auf einer Differenz zwischen dem Ausschaltzeitereignis des Rückmeldestromsignals und dem anfänglichen Ausschaltzeitereignis des Stromsteuersignals basiert und
    Bestimmen, ob sich die zeitliche Differenz außerhalb des entsprechenden ersten und/oder zweiten vorgegebenen Bereichs befindet, in Abhängigkeit dazu, ob sich die Verzögerungszeit außerhalb eines vorgegebenen Bereichs befindet.
  12. Steuer-/Regelverfahren nach Anspruch 11, wobei das Steuern der ersten und/oder zweiten zeitlichen Differenz, entsprechend ob es sich innerhalb des ersten und/oder zweiten vorgegebenen Bereichs befindet, enthält Aussenden des Stromsteuersignals, das ein entsprechend verändertes anfängliches Einschalt- und/oder Ausschaltzeitereignis besitzt, und entsprechendes Ändern des Einschalt- und/oder Ausschaltzeitereignis durch das Stromsteuersignal.
  13. Steuer-/Regelverfahren nach einem der Ansprüche 8 bis 12, ferner umfassend:
    Empfangen eines Verzögerungszeiteingabesignals zum Verzögern des Einschalt- und/oder Ausschaltzeitereignis des Stromsignals; und
    Verzögern wenigstens des Einschalt- und/oder Ausschaltzeitereignisses und/oder des Freigabe- und/oder Speerzeitereignisse entsprechend einer Verzögerungszeit.
  14. Steuerverfahren der Anzeigeeinrichtung nach Anspruch 13, wobei das Verzögern des Einschalt- und/oder Ausschaltzeitereignis gemäß einer Zeitdauer, die der Verzögerungszeit entspricht, das Speichern der Verzögerungszeit, und das Verzögern wenigstens des Einschalt- und/oder Ausschaltzeitereignisses und/oder des Freigabe- und/oder Speerzeitereignisses um die gespeicherte Verzögerungszeit enthält.
EP06120707A 2005-09-16 2006-09-14 Anzeigevorrichtung und Steuerverfahren dafür Ceased EP1764776B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020050086727A KR101123716B1 (ko) 2005-09-16 2005-09-16 디스플레이장치 및 그 제어방법

Publications (3)

Publication Number Publication Date
EP1764776A2 EP1764776A2 (de) 2007-03-21
EP1764776A3 EP1764776A3 (de) 2007-04-04
EP1764776B1 true EP1764776B1 (de) 2008-10-29

Family

ID=37635678

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06120707A Ceased EP1764776B1 (de) 2005-09-16 2006-09-14 Anzeigevorrichtung und Steuerverfahren dafür

Country Status (5)

Country Link
US (1) US8049745B2 (de)
EP (1) EP1764776B1 (de)
KR (1) KR101123716B1 (de)
CN (1) CN100471243C (de)
DE (1) DE602006003390D1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8379011B2 (en) 2007-07-20 2013-02-19 Samsung Display Co., Ltd. Driving device, display apparatus having the same and method of driving the display apparatus

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3088298B2 (ja) 1996-08-15 2000-09-18 群馬日本電気株式会社 電源ｏｎ／ｏｆｆシーケンス回路
KR19990002541A (ko) * 1997-06-20 1999-01-15 홍윤기 대나무통 죽순찐밥의 제조방법
KR19990053561A (ko) 1997-12-24 1999-07-15 전주범 피디피 텔레비전의 전원 온·오프 방법
KR100536833B1 (ko) * 1999-07-05 2005-12-14 엘지.필립스 엘시디 주식회사 액정표시소자의 화이트스크린 에러 방지방법 및 그에 따른 장치
JP3835967B2 (ja) * 2000-03-03 2006-10-18 アルパイン株式会社 Ｌｃｄ表示装置
JP3776678B2 (ja) 2000-05-26 2006-05-17 Ｎｅｃパーソナルプロダクツ株式会社 電源投入切断シーケンス回路方式
KR100429222B1 (ko) * 2001-11-08 2004-04-29 엘지전자 주식회사 피디피 티브이의 파워 온 시퀀스 방법
KR20050040499A (ko) 2003-10-29 2005-05-03 엘지전자 주식회사 컴퓨터 시스템에서의 파워 온 시퀀스 생성장치
KR100756584B1 (ko) 2003-11-17 2007-09-10 삼성전자주식회사 디스플레이장치 및 그 잔상제거방법

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8379011B2 (en) 2007-07-20 2013-02-19 Samsung Display Co., Ltd. Driving device, display apparatus having the same and method of driving the display apparatus

Also Published As

Publication number Publication date
US8049745B2 (en) 2011-11-01
KR101123716B1 (ko) 2012-03-15
CN100471243C (zh) 2009-03-18
US20070064158A1 (en) 2007-03-22
EP1764776A2 (de) 2007-03-21
CN1933572A (zh) 2007-03-21
EP1764776A3 (de) 2007-04-04
DE602006003390D1 (de) 2008-12-11
KR20070032464A (ko) 2007-03-22

Similar Documents

Publication Publication Date Title
US20060114275A1 (en) Display apparatus and control method thereof
US20090243994A1 (en) Backlight control device and display apparatus
US20060274206A1 (en) Display apparatus having adjustable pip function and control method thereof
US20080049049A1 (en) Display apparatus, and control method thereof
KR20080064710A (ko) 다단계 부팅 프로세스를 구현하는 디지털 텔레비전 장치
WO2010137362A1 (ja) 表示装置、及びテレビ受信装置
JP2005295256A (ja) テレビジョン受像機
US7583256B2 (en) Display apparatus and control method thereof
EP1764776B1 (de) Anzeigevorrichtung und Steuerverfahren dafür
US8379149B2 (en) Display apparatus and control method thereof
US7738004B2 (en) Display apparatus to display a picture according to an input video signal and control method thereof
KR20020057563A (ko) 피디피 티브이의 전원 제어장치
KR100744526B1 (ko) 스케일 팩터에 따른 샤프니스 조정 방법 및 그 장치
US20060214944A1 (en) Display apparatus and control method thereof
KR100654769B1 (ko) 디스플레이장치 및 그 제어방법
JPH0449781A (ja) テレビジョン画像表示装置
KR100641439B1 (ko) 액정 텔레비젼의 화면 밝기 조절 시스템 및 방법
KR100265705B1 (ko) 영상 자동 조절 기능을 구비한 평판 디스플레이 장치 및 그의제어 방법
JP2006340249A (ja) テレビジョン受像機
JP2000147468A (ja) 液晶表示装置
KR20060013201A (ko) Ｌｃｄ 소비전력 절감장치 및 방법
US20080231754A1 (en) System and method for dynamically establishing microdisplay driver offsets using brightness value in rear projection TV having dynamic iris control
JP2003009176A (ja) ホワイトバランス調整回路及びそれを用いた映像表示装置
KR20090024884A (ko) 영상표시기기에서 밝기 제어 장치 및 그 방법
KR20070034866A (ko) 디스플레이장치 및 그 제어방법

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

17P Request for examination filed

Effective date: 20070903

17Q First examination report despatched

Effective date: 20071009

AKX Designation fees paid

Designated state(s): DE GB NL

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE GB NL

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 602006003390

Country of ref document: DE

Date of ref document: 20081211

Kind code of ref document: P

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20090730

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20200821

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20200820

Year of fee payment: 15

Ref country code: GB

Payment date: 20200824

Year of fee payment: 15

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602006003390

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MM

Effective date: 20211001

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20210914

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210914

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220401